CN102599853B - Vacuum cleaner telescopic extension tube - Google Patents
Vacuum cleaner telescopic extension tube Download PDFInfo
- Publication number
- CN102599853B CN102599853B CN201210046091.3A CN201210046091A CN102599853B CN 102599853 B CN102599853 B CN 102599853B CN 201210046091 A CN201210046091 A CN 201210046091A CN 102599853 B CN102599853 B CN 102599853B
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- China
- Prior art keywords
- groove
- outer tube
- draw
- brake component
- extension tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
- A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/248—Parts, details or accessories of hoses or pipes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
The invention discloses a kind of vacuum cleaner telescopic extension tube, comprise outer tube; Be slidably located in described outer tube, along length direction, pipe in multiple draw-in groove be set according to certain interval; Be arranged on the rear end of described outer tube for optionally fixing the length adjusting elements of described interior pipe adjustment extension tube length on outer tube, described length adjusting elements comprises the cylinder-shaped sleeve being connected to described outer tube back-end, and the top of cylinder-shaped sleeve is provided with a pair spring fitting groove; To be movably set on sleeve pipe and inner surface is provided with the slide lid of restriction protrusion; Be arranged on the coil spring for making slide lid set back in spring fitting groove; And the brake component be made up of elastomeric material be arranged on sleeve pipe, brake component is provided with the fixed projection of through sleeve pipe.Because brake component produces by the elastic force of self strength made in fixed projection insertion draw-in groove, so be more prone to be fixed on the positioning extension tube, thus interior pipe is fixed in outer tube.
Description
Technical field
The present invention relates to vacuum cleaner, refer more particularly to a kind of vacuum cleaner telescopic extension tube.
Background technology
Usual vacuum cleaner comprises, the main body of dust collector of suction and the air classification collection of material by suction can be produced, and the brush combination body that the suction to be arranged by described main body of dust collector is used when sucking the foreign matters such as extraneous air and the dust that is inhaled into, and the parts such as telescopic extension tube, handle component, the bending type flexible pipe composition used when the foreign matter sucked by brush combination body and air are drawn in air cleaner main body again.
A kind of telescopic extension tube of vacuum cleaner disclosed in No. KR20-0343675, Korean registration utility, there is the structure that user oneself can adjust its length, and, comprise outer tube, and manage in being slidably connected on described outer tube, and described interior pipe is optionally connected to described outer tube, the length adjustable member etc. in order to adjust extension tube length is set.
This original telescopic extension tube, when adjusting its length, after needing the first releasing slots portion of brake, then reinserts in groove.But brake can not produce the strength that groove direction is blocked sometimes, when under the posture that hold telescoping tube in user's hand, brake is not easy to be stuck in groove sometimes, so when adjusting length, can feel very inconvenient.
Summary of the invention
Technical problem to be solved by this invention is: provide one can not only easily adjust its length, and interior pipe can be fixed on the vacuum cleaner telescopic extension tube on outer tube.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: vacuum cleaner telescopic extension tube, comprises outer tube;
The interior pipe be slidably located in described outer tube, interior pipe is provided with some draw-in grooves row, often row draw-in groove row is arranged at intervals with multiple draw-in groove along length direction;
Be arranged on the rear end of described outer tube for optionally fixing the length adjusting elements of described interior pipe adjustment extension tube length on outer tube, described length adjusting elements comprises the cylinder-shaped sleeve being connected to described outer tube back-end, and the top of cylinder-shaped sleeve is provided with a pair spring fitting groove;
To be movably set on sleeve pipe and inner surface is provided with the slide lid of restriction protrusion;
Be arranged on the coil spring for making slide lid set back in spring fitting groove;
And the brake component be made up of elastomeric material be arranged on sleeve pipe, brake component is provided with the fixed projection of through sleeve pipe, when can fixed projection be made to return in draw-in groove under the effect of brake component natural resiliency power after fixed projection departs from described draw-in groove;
Described sleeve pipe is provided with along outer circumference surface can make brake component be locked in locating slot wherein, described locating slot is provided with the through hole matched with fixed projection;
Brake component adopts semicircle banded structure;
Brake component comprises, and is provided with described fixed projection below and a pair main board with designated curvature of a segment distance layout of being separated by;
Connect the central bellows of a pair main board;
Be arranged on the side bellows of a pair main board both sides;
Be arranged on the central support portion be supported between described locating slot and described slide lid of the middle part in described central bellows portion;
Be arranged on the lateral bolster support part between the described locating slot of support of the end in bellows portion, described side and described slide lid;
Be arranged on a pair extension corresponding with described restriction protrusion above main board;
When described fixed projection departs from from described draw-in groove, central bellows and side bellows can be opened and become large, and produce the elastic force set back.
Described draw-in groove number of columns is two row, and mutually isolated on the outer circumference surface of described interior pipe, and the quantity of the fixed projection on described sleeve pipe is a pair, and installation site is corresponding with draw-in groove position.
Described sleeve pipe top is provided with a pair layout spring fitting groove point-blank in outward direction along described locating slot.
Described brake component material is acetal resin.
The periphery bottom of described interior pipe is provided with the rail groove preventing rotation along length direction, and described sleeve pipe lower inner surface is provided with the anti-rotational projection along preventing the rail groove movement rotated.
On the downside of described bushing outer surface, length direction is provided with guide rail, on the downside of described slide lid inner surface, is provided with the overall guide protrusion along guide rail movement.
Advantage of the present invention is: because brake component is produced by the elastic force of self to make fixed projection insert strength in draw-in groove, so be more prone to be fixed on the positioning extension tube, thus reaches and make interior pipe be fixed on effect in outer tube.
Meanwhile, be inserted in a pair draw-in groove arranged along interior pipe outer circumference surface, so interior pipe can be securely fixed on outer tube more owing to being provided with a pair fixed projection.
Accompanying drawing explanation
Fig. 1 is the telescopic extension tube of the vacuum cleaner according to a kind of case representation of the present invention, is in view when being fully withdrawn.
Fig. 2 is the telescopic extension tube of the vacuum cleaner according to a kind of case representation of the present invention, is in view when regaining completely.
Fig. 3 is the telescopic extension tube of the vacuum cleaner according to a kind of case representation of the present invention, splits the schematic diagram represented.
Fig. 4 is the sectional drawing represented along the IV-IV line of figure mono-.
Fig. 5 is the sectional drawing represented along the V-V line of figure mono-.
Fig. 6 is the sectional drawing represented along the VI-VI line of figure mono-.
Fig. 7 is in the extension tube of figure five, in order to adjust the length of extension tube, moves the state sectional drawing after slide lid.
Fig. 8 is in the extension tube of figure six, in order to adjust the length of extension tube, and the state sectional drawing after locking projection departs from from groove.
Fig. 9 is in the extension tube of figure seven, in order to adjust the length of extension tube, and the state sectional drawing after locking projection departs from from groove.
In Fig. 1-9: 10. telescopic extension tube, pipe in 100., 103. seal members, 109. anti-rotational rail grooves, 120. outer tube front ends, 106. draw-in grooves, 200. outer tubes, 205. connecting holes;
300. length adjusting elements, 310. sleeve pipes, 311. in conjunction with projection, 312a, 312b. mounting groove, 313. locating slots, 315. through holes, and 316A, 316B. cut off, 318. guide rails, 319. anti-rotational projections;
320. brake components, 320a. main board, 321a. central support portion, 321b. lateral bolster support part, 323. fixed projections, 325. extensions, 327. central bellows, 328. side bellows;
330a, 330b. coil spring, 340. slide lids, 341. rear lids, 342. front lids, 341A, 342A. spring layering portion, 345. guide protrusions, 347. restriction protrusion.
Detailed description of the invention
Particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Visible with reference to figure mono-to figure nine, telescopic extension tube (10) comprises interior pipe (100), outer tube (200) and length adjusting elements (300).
As shown in figure mono-and figure bis-, the structure of telescopic extension tube (10) is that interior pipe (100) and outer tube (200) are by length adjusting elements (300) scalable connection.That is, interior pipe (100) is movably arranged in outer tube (200), and length can adjust.In order to limit the relative movement of interior pipe (100) and outer tube (200), or in order to unlock, the rearward end of outer tube (200) is connected and fixed length adjusting elements (300).
As shown in figure tri-and figure tetra-, be connected to seal member (103) at the front end place of interior pipe (100).In order to prevent leaking gas between interior pipe (100) and outer tube (200), play sealing function.
Interior pipe (100) arranges two row draw-in grooves (106) along length direction according to certain interval.As shown in figure mono-and figure tri-, two row draw-in grooves (106) are mutually isolated on interior pipe (100) outer circumference surface.Draw-in groove (106) is long ellipse along interior pipe (100) circumference.The rear end of interior pipe (100) is connected with vacuum cleaner handle part (not shown).
Outer tube front end (120) can connect brush combination part (not shown), rear end arranges multiple connecting hole (205) along circumferencial direction and carrys out connecting length adjustment component (300).
Learn with reference to figure tri-to figure six, length adjusting elements (300) comprises sleeve pipe (310), brake component (320), a pair coil spring (330A, 330B) and slide lid (340), interior pipe (100) can be used for optionally to be fixed on the upper a certain position of outer tube (200).
Sleeve pipe (310) is for cylindric, on the inner peripheral surface of leading section, the position of corresponding above connecting hole (205) is arranged in conjunction with projection (311).Meanwhile, sleeve pipe (310) is connected to connecting hole (205) in conjunction with projection (311) go up and connect the rear end of outer tube (200).
Sleeve pipe (310) outer surface circumference is provided with locating slot (313), locating slot (313) is provided with mutually isolated a pair through hole (315).Mounting groove (312A, 312B) is respectively arranged with along length direction at the rear ends of the upper locating slot (313) of sleeve pipe (310).A pair mounting groove (312A, 312B) extend setting along the length direction of sleeve pipe (310) respectively to lateral direction from the side of locating slot (313), and a pair mounting groove (312A, 312B) is arranged point-blank.
On the outer circumference surface of sleeve pipe (310) with through hole (315) for benchmark arranges partition (316A, 316B) to direction, both sides.
Brake component (320) adopts semicircle banded structure, and material is acetal resin (POM).When brake component (320) are installed, in the locating slot (313) that it should be made to be arranged on sleeve pipe (310).
Brake component (320) comprises, a pair main board (320A), a pair extension (325), central bellows (327), side bellows (328), central support portion (321A), lateral bolster support part (321B) and a pair fixed projection (323) etc.
Main board (320A) adopts into two structures and has the curvature of specifying.A pair main board (320A) segment distance of being separated by is arranged, is provided with fixed projection (323) below main board (320A).
Central authorities' bellows (327) adopt wrinkle shape, a pair brake component (320) are connected in one.
Side bellows (328) are the one-tenth double structure adopting wrinkle shape, extend from the outside end of a pair brake component (320).
A pair fixed projection (323) is inserted in upper a pair through hole (315) arranged of locating slot (313), and then certain in inserting on pipe (100) is in draw-in groove (106), thus reaches interior pipe (100) is fixed on outer tube (200).The end section of a pair fixed projection (323) is that toroidal can insert or disengaging from draw-in groove (106) to draw-in groove (106) more easily, and the end face of draw-in groove (106) also correspondence is arranged to circle.
Brake component (320) upwards extends setting from a pair main board (320A).
Central support portion (321A) adopts square platy structure, extends arrange from the centre position upward direction entirety of central bellows (327).
Lateral bolster support part (321B) has same square platy structure with lateral bolster support part (321B), and the outside end place upward direction entirety of bellows (328) extends setting from the side.
Central support portion (321A) and lateral bolster support part (321B) are arranged between locating slot (313) and the slide lid (340) that will introduce below.
In above structure, when a pair fixed projection (323) departs from from draw-in groove (106), central bellows (327) in brake component (320) and side bellows (328) can broaden prolongation, thus generation makes brake component (320) restorable elastic force, and then a pair fixed projection (323) can be inserted in draw-in groove (106) again when next draw-in groove (106) position.
Coil spring (330A, 330B) be arranged on the mounting groove (312A on sleeve pipe (310) top, 312B), after slide lid (340) moves by external force, coil spring (330A, 330B) can make slide lid (340) return to original position.
Shown in figure bis-to figure four, slide lid (340) is arranged on sleeve pipe (310), conveniently splits, and front can be adopted to cover the structure at (342) and rear lid (341).
As shown in figure tetra-, there is hook at front lid (342) and rear lid (341) on relative position, by this hook, (341) are covered at front lid (342) and rear and link together.
On the upside of the inwall of slide lid (340) two ends, spring layering portion (341A, 342A) of tiered form is set respectively.Spring layering portion (341A, 342A) be inserted into mounting groove (312A, 312B), when slide lid (340) moves forward or backward relative to sleeve pipe (310), spring layering portion (341A, 342A) mobile along mounting groove (312A, 312B).
Meanwhile, when user hold slide lid (340) move backward forwards, backwards time, spring layering portion (341A, 342A) will be inserted in mounting groove (312A, 312B), promote and collapse coil spring (330A, 330B).When user eliminates external force, will automatically restore on original position at the resilient force lower slider lid (340) of coil spring (330A, 330B).
Cover in the wings on (314) inner face and restriction protrusion (347) (please refer to figure five) is set.As shown in figure five, when user does not move slide lid (340), match with restriction protrusion (347) and make a pair fixed projection (323) cannot depart from draw-in groove (106) in extension (325) upper end of brake component (320).As shown in figure seven, when relative to sleeve pipe (310), rearward (or front) is mobile slide lid (340) for user, restriction protrusion (347) departs from from extension (325), between the inner face of the upper end of extension (325) and slide lid (340), be provided with space, fixed projection (323) can be departed from from draw-in groove (106).
As shown in Figure IV, due on the downside of sleeve pipe (310) outer circumference surface, on length direction, arrange guide rail (318), below the inner side of slide lid (340), { below the inner side at rear lid (341) } place is provided with the guide protrusion (345) along guide rail (318) movement.When user advances slide lid (340) in front-rear direction relative to sleeve pipe (310) or pulls, slide lid (340) can more stably move forward and backward relative to sleeve pipe (310).
The present invention adopts the structure preventing interior pipe (100) and outer tube (200) from mutually rotating.Specifically, in interior pipe (100) outer circumference surface bottom, length direction is provided with anti-rotational rail groove (109), the inner surface of the sleeve pipe (310) be connected and fixed in outer tube (200) rear end is provided with can along the anti-rotational projection (319) of above anti-rotational rail groove (109) movement.When outer tube (200) moves forward or backward relative to interior pipe (100), anti-rotational projection (319) can be mobile along anti-rotational rail groove (109), thus prevent outer tube (200) from rotating relative to interior pipe (100).
Below with reference to figure five to figure nine, the operating process of the vacuum cleaner telescopic extension tube according to example of the present invention is described.
User can utilize length adjusting elements (300) to adjust the length of telescopic extension tube (10).Such as, user can hold with one the handle portion (not shown) that interior pipe (100) rear end connects, slide lid (340) is held with another, by drawing forward or promote the mode of slide lid (340), the length of adjustment telescopic extension tube (10).
Specifically, as as shown in figure five to figure seven, under the state (initial state) that the restriction protrusion (347) of slide lid (340) is corresponding with the extension (325) of brake component (320), a pair fixed projection (323) cannot depart from draw-in groove (106), so user pull or promote interior pipe (100) and outer tube (200) state under, interior pipe (100) and outer tube (200) also can not movements mutually.
Under this init state (with reference to as figure five to figure seven), if user is according to such as shown in figure seven, in promoting while pulling slide lid (340) during pipe (100), as as shown in figure eight and figure nine, slide lid (340) can move, now restriction protrusion (347) can depart from from extension (325), a pair fixed projection (323) is upwards moved side, depart from from draw-in groove (106), thus interior pipe (100) can be mobile to outer tube (200) inside.Now as seen in figure 9, the central bellows (327) of brake component (320) and side bellows (328) are opened and are become large, and produce the strength (natural resiliency power) set back to the direction that draw-in groove (106) inserts along fixed projection (323).
When user eliminates the external force on slide lid (340), at a pair coil spring (330A, elastic force effect lower slider lid (340) 330B) will return to original position (original position), simultaneously, a pair fixed projection (323) will be inserted in draw-in groove (106), and the restriction protrusion (347) of slide lid (340) is corresponding with extension (325) upper end of brake component (320) fixing.Because a pair fixed projection (323) is also by the restitution of central bellows (327) and side bellows (328) natural resiliency power, be inserted into more easily in draw-in groove (106).
As mentioned above, telescopic extension tube (10) in the present invention, when departing from draw-in groove (106), under elastic reaction by brake component (320) self, the strength that fixed projection (323) is inserted to draw-in groove (106) can be produced, even if so user make brake component (320) downwards conversely telescopic extension tube (10) when, also a pair fixed projection (323) can be easy to be inserted in draw-in groove (106), thus reach interior pipe (100) is fixed on outer tube (200).Simultaneously, a pair fixed projection (323) is by the effect of brake component (320) natural resiliency power, be not easy to depart from from a pair fixed projection (323), interior pipe (100) and outer tube (200) are more firmly fixed together.
Above, in order to principle of the present invention is described, make use of embodiment and relevant drawing is illustrated.But, the present invention be not be only limited to above diagram and illustrate in formation and effect.But in annex Patent application range, can carry out multiple different change and correction, this all changes and correction etc. suitably, are also all within the scope of the present invention.
Claims (6)
1. vacuum cleaner telescopic extension tube, is characterized in that: comprise outer tube;
The interior pipe be slidably located in described outer tube, interior pipe is provided with some draw-in grooves row, often row draw-in groove row is arranged at intervals with multiple draw-in groove along length direction;
Be arranged on the rear end of described outer tube for optionally fixing the length adjusting elements of described interior pipe adjustment extension tube length on outer tube, described length adjusting elements comprises the cylinder-shaped sleeve being connected to described outer tube back-end, and the top of cylinder-shaped sleeve is provided with a pair spring fitting groove;
To be movably set on sleeve pipe and inner surface is provided with the slide lid of restriction protrusion;
Be arranged on the coil spring for making slide lid set back in spring fitting groove;
And the brake component be made up of elastomeric material be arranged on sleeve pipe, brake component is provided with the fixed projection of through sleeve pipe, when can fixed projection be made to return in draw-in groove under the effect of brake component natural resiliency power after fixed projection departs from described draw-in groove;
Described sleeve pipe is provided with along outer circumference surface can make brake component be locked in locating slot wherein, described locating slot is provided with the through hole matched with fixed projection;
Brake component adopts semicircle banded structure;
Brake component comprises, and is provided with described fixed projection below and a pair main board with designated curvature of a segment distance layout of being separated by;
Connect the central bellows of a pair main board;
Be arranged on the side bellows of a pair main board both sides;
Be arranged on the central support portion be supported between described locating slot and described slide lid of the middle part in described central bellows portion;
Be arranged on the lateral bolster support part between the described locating slot of support of the end in bellows portion, described side and described slide lid;
Be arranged on a pair extension corresponding with described restriction protrusion above main board;
When described fixed projection departs from from described draw-in groove, central bellows and side bellows can be opened and become large, and produce the elastic force set back.
2. vacuum cleaner telescopic extension tube as claimed in claim 1, it is characterized in that: described draw-in groove number of columns is two row, and mutually isolated on the outer circumference surface of described interior pipe, the quantity of the fixed projection on described sleeve pipe is a pair, and installation site is corresponding with draw-in groove position.
3. vacuum cleaner telescopic extension tube as claimed in claim 1, is characterized in that: described sleeve pipe top is provided with a pair layout spring fitting groove point-blank in outward direction along described locating slot.
4. vacuum cleaner telescopic extension tube as claimed in claim 1, is characterized in that: described brake component material is acetal resin.
5. vacuum cleaner telescopic extension tube as claimed in claim 1, it is characterized in that: the periphery bottom of described interior pipe is provided with the rail groove preventing rotation along length direction, and described sleeve pipe lower inner surface is provided with the anti-rotational projection along preventing the rail groove movement rotated.
6. vacuum cleaner telescopic extension tube as claimed in claim 1, is characterized in that: on the downside of described bushing outer surface, length direction is provided with guide rail, is provided with the overall guide protrusion along guide rail movement on the downside of described slide lid inner surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110113452A KR101304606B1 (en) | 2011-11-02 | 2011-11-02 | Telescopic pipe of vacuum cleaner |
| KR10-2011-0113452 | 2011-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102599853A CN102599853A (en) | 2012-07-25 |
| CN102599853B true CN102599853B (en) | 2016-02-10 |
Family
ID=46517920
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210046091.3A Active CN102599853B (en) | 2011-11-02 | 2012-02-27 | Vacuum cleaner telescopic extension tube |
| CN2012200662200U Withdrawn - After Issue CN202537413U (en) | 2011-11-02 | 2012-02-27 | Vacuum cleaner telescopic type extended pipe |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200662200U Withdrawn - After Issue CN202537413U (en) | 2011-11-02 | 2012-02-27 | Vacuum cleaner telescopic type extended pipe |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101304606B1 (en) |
| CN (2) | CN102599853B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101304606B1 (en) * | 2011-11-02 | 2013-09-05 | 강소국신금속제품유한회사 | Telescopic pipe of vacuum cleaner |
| CN115267753B (en) * | 2022-09-26 | 2023-01-06 | 水利部交通运输部国家能源局南京水利科学研究院 | Underwater laser radar calibration method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4101049A1 (en) * | 1991-01-16 | 1992-07-23 | Miele & Cie | Telescopic suction tube for vacuum cleaner - secures inner tube to outer by relative rotation, inner tube wall having indented arrest recesses working with arresting element |
| DE4200527A1 (en) * | 1992-01-11 | 1993-07-22 | Froh Roehren | TELESCOPICIC VACUUM CLEANER PIPE |
| CN1368861A (en) * | 2000-06-21 | 2002-09-11 | 希日传司舍电子有限公司 | Length adjustment device of suction extension pipe for vacuum cleaner |
| CN101822510A (en) * | 2009-03-06 | 2010-09-08 | 乐金电子(天津)电器有限公司 | Expansion joint pipe structure of dust collector |
| CN202537413U (en) * | 2011-11-02 | 2012-11-21 | 江苏国新金属制品有限公司 | Vacuum cleaner telescopic type extended pipe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19738194C1 (en) * | 1997-02-14 | 1998-06-10 | Froh Carl Gmbh | Telescopic suction pipe for vacuum cleaner |
| ATE394064T1 (en) * | 1999-10-11 | 2008-05-15 | Omec Spa | TELESCOPIC EXTENSION FOR HOUSEHOLD ELECTRICAL APPLIANCES |
| KR20020011675A (en) * | 2000-08-03 | 2002-02-09 | 윤해숙 | A length control device for a telescopic extension pipe of vacuum cleaner |
| KR20020000094A (en) * | 2000-06-21 | 2002-01-04 | 윤해숙 | A length control device for a telescopic extension pipe of vacuum cleaner |
-
2011
- 2011-11-02 KR KR1020110113452A patent/KR101304606B1/en active IP Right Grant
-
2012
- 2012-02-27 CN CN201210046091.3A patent/CN102599853B/en active Active
- 2012-02-27 CN CN2012200662200U patent/CN202537413U/en not_active Withdrawn - After Issue
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4101049A1 (en) * | 1991-01-16 | 1992-07-23 | Miele & Cie | Telescopic suction tube for vacuum cleaner - secures inner tube to outer by relative rotation, inner tube wall having indented arrest recesses working with arresting element |
| DE4200527A1 (en) * | 1992-01-11 | 1993-07-22 | Froh Roehren | TELESCOPICIC VACUUM CLEANER PIPE |
| CN1368861A (en) * | 2000-06-21 | 2002-09-11 | 希日传司舍电子有限公司 | Length adjustment device of suction extension pipe for vacuum cleaner |
| CN101822510A (en) * | 2009-03-06 | 2010-09-08 | 乐金电子(天津)电器有限公司 | Expansion joint pipe structure of dust collector |
| CN202537413U (en) * | 2011-11-02 | 2012-11-21 | 江苏国新金属制品有限公司 | Vacuum cleaner telescopic type extended pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130048552A (en) | 2013-05-10 |
| KR101304606B1 (en) | 2013-09-05 |
| CN102599853A (en) | 2012-07-25 |
| CN202537413U (en) | 2012-11-21 |
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